Road bike and mountain bike mobile phone holder designed for stable, shockproof navigation and recording Key benefits Keeps your phone secure on rough terrain: dual safety locks and silicone cushioning hold devices firmly and reduce vibration. Fast, tool operation: quick release mechanism fixes by pressing and rotating 90 degrees for fast mounting and removal. Flexible viewing and recording: rotates between vertical and horizontal orientations and allows angle adjustment to suit different riding positions. Broad compatibility: fits a wide range of handlebars and devices so one solution works for multiple bikes and phones. Main features Stable and antishake design with silicone padding and dual safety locks for reliable fixation on rough roads. Quick release installation: press and rotate 90 degrees to lock or unlock; no tools required and easy for beginners. Adjustable orientation and angle: supports both vertical navigation and horizontal recording or timing, with smooth switching and locking. Handlebar compatibility: fits diameters from 20 mm to 45 mm, suitable for road bikes and mountain bikes. Device compatibility: supports mainstream smartphone and tablet sizes for navigation, recording, and tracking. Specifications Color: Black Size: One size Single product gross weight: 0.21 KG Color box size: 10.8 x 8.3 x 14.5 CM Box size: 62.5 x 45.5 x 33 CM Imported: No Typical use scenarios Navigation on a road ride: mount the phone in portrait mode with the screen tilted for easy glanceable turn instructions. Trail or offroad recording: lock the phone in landscape mode and secure the angle for stable video while descending rough sections. Training and timing: attach the device for a clear view of ride metrics and timers while keeping hands on the bars. Why choose this holder Straightforward, reliable, and versatile mounting for cyclists who need stable phone positioning without complex setup. Easy to install and adjust, it is suited to multiple bikes and device sizes while minimizing vibration on uneven surfaces.